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'''Tuberculosis''' in cattle is caused by ''[[Mycobacterium bovis]]''. It is a chronic disease characterised by nodular lesions in any organ, although the respiratory system is most commonly affected. The nodules often become nectroic with a caseous centre. rupture of the nodules releases ...
'''Tuberculosis''' in cattle is caused by ''[[Mycobacterium bovis]]''. It is a chronic disease characterised by nodular lesions in any organ, although the respiratory system is most commonly affected. The nodules often become nectroic with a caseous centre. rupture of the nodules releases ...
Inhalation of ruminal gases is the most common route of entry for the mycobacterium organism, and spread of the disease is usually via cow to cow contant. Cattle can also become infected by ingestion of the causative agent, this is thought to be the route of entry when the badger is involved, infecting grazing land or water troughs.
Historically bovine TB was a major cuase of human TB, but the introduction of tuberculin testing and slaughter, meat inspection at abatoirs, the pasturisation of milk and the BCG vaccination has dramatically reduced transmission to humans and bovine TB as a cuase of human disease is now very low indeed.
Historically bovine TB was a major cuase of human TB, but the introduction of tuberculin testing and slaughter, meat inspection at abatoirs, the pasturisation of milk and the BCG vaccination has dramatically reduced transmission to humans and bovine TB as a cuase of human disease is now very low indeed.